Approval of Air Quality Implementation Plans; Puerto Rico; Infrastructure Requirements for the 1997 and 2008 Ozone, 1997 and 2006 Fine Particulate Matter and 2008 Lead NAAQS

The Environmental Protection Agency (EPA) is approving most elements of the five State Implementation Plan (SIP) revision submittals from the Commonwealth of Puerto Rico to demonstrate that the State meets the requirements of section 110(a)(1) and (2) of the Clean Air Act (CAA) for the 1997 and 2008 ozone, 1997 and 2006 fine particulate matter (PM<INF>2.5</INF>) and 2008 lead National Ambient Air Quality Standards (NAAQS). The SIP is required to address basic program elements, including, but not limited to: Regulatory structure, monitoring, modeling, legal authority, and adequate resources necessary to assure attainment and maintenance of the standards. These elements are referred to as infrastructure requirements. In this rulemaking action, EPA is approving, in accordance with the requirements of the CAA, the infrastructure SIP submissions with the exception of some portions of the submittals addressing Prevention of Significant Deterioration (PSD).